Ohio Gov. Mike DeWine signs law to arm teachers with 24 hours of training

School districts across Ohio will be able to authorize teachers, principals and other staff to carry firearms into classrooms this fall after 24 hours of training. 

The new law, signed Monday by Republican Gov. Mike DeWine, will lower the required training hours for armed school personnel from about 700 hours to four scenario-based training hours, plus a maximum of 20 hours for first-aid training, history of school shootings and reunification education. 

The signing came the same day Ohio's new constitutional carry law took effect. 

"In life we make choices, and we don't always know what the outcome is going to be," DeWine said at a news conference. "What this Legislature has done, I've done by signing it, is giving schools an option based on their particular circumstances to make the best decision they can make with the best information they have. That's all any decision-maker can do."